# Troubleshooting

This page will have common problems and common solutions to those problems.

## First Steps

The first step to troubleshooting any problem is getting the cause of the error. KlipperScreen log output will occur
in two places. Check for the file `/tmp/KlipperScreen.log` and look at the contents by running
`cat /tmp/KlipperScreen.log` or grabbing the file over WinSCP or another scp program.

If that file is non-existent, there is a problem in KlipperScreen starting up. To get the error output in this case,
run `journalctl -xe -u KlipperScreen`.


## Common Errors

### Problems occuring before the log file appears

This section will detail problems that may happen before the log file has been created. Each section will start with a
relevant line from the journalctl output.

#### Cannot open virtual Console
```
xf86OpenConsole: Cannot open virtual console 2 (Permission denied)
```

* Check /etc/X11/Xwrapper.conf
This should have the line `allowed_users=anybody` in it
* Check /etc/group
Run the command `cat /etc/group | grep tty`. If you username is not listed under that line, you need to add it with the
following command (if you username is not 'pi' change 'pi' to your username):
`usermode -a -G tty pi`